4X5MZ — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: Israel Locator transmitted in a decoded message: KM71

Receiver-side FT8 activity involving 4X5MZ, decoded by SO8OO in southeastern Poland. 2,595 related FT8 messages, 1,055 CQ messages, observed on 80m, 60m, 40m, 20m, 10m, across 72 UTC dates. Heard between 2026-05-24 and 2026-08-22.

These are automated observations at the SO8OO receiver, not the station's official logbook. Times are UTC. Decoder S/N describes messages received at SO8OO; inferred entity and location data may be inaccurate for portable, remote or special-event operation.

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Overview

2,595

Related messages

1,055

CQ messages

UTC dates heard

-5 dB

Mean decoder S/N

Bands

80m 20m 40m 60m 10m

First seen: 2026-05-24
Last seen: 2026-08-22 04:33 UTC

Frequent QSO partners observed at SO8OO

Stations 4X5MZ worked most often, as logged from our receiver:

TA3XEE · Asiatic Turkey ×7 M0IEP · England ×4 IK4LZH · Italy ×4 RC6OD · European Russia ×3 F1PBZ · France ×3 W4CHA · United States ×3 F1IQH · France ×3 W4KWS · United States ×3 KS9Q · United States ×2 SV1MOZ · Greece ×2 DO1ID · Fed. Rep. of Germany ×2 K4YT · United States ×2

Activity Heatmap

Locator transmitted by 4X5MZ

Approximate centre of KM71, decoded 2026-08-22 06:33 UTC. A transmitted locator is not proof of the operator's permanent location.

Observed FT8 exchanges

S/N cells show: decoded at SO8OO / report transmitted by the counterpart. An observed exchange is not a QSL or an official logbook confirmation.

Time UTC	Band	4X5MZ S/N	Counterpart	Counterpart S/N	Msgs	Capture
08-22 06:33	20m	-5 / -	IU7VOL	+2 / -13	4	✓ Closing observed
08-22 06:31	20m	-6 / -3	II7MGXX	-3 / -	3	Partial capture
08-20 17:02	40m	0 / -	RK3AW	- / -15	2	✓ Closing fragment
08-20 16:59	40m	0 / -	RA0WBI	- / -	2	Partial capture
08-20 16:58	40m	-4 / -	DB3MAX	-2 / -17	4	Partial capture
08-20 16:57	40m	-2 / -	<...>	- / -14	2	Partial capture
08-20 16:57	40m	+3 / -11	DL0FTT	0 / -19	9	✓ Full exchange observed
08-20 16:56	40m	0 / -9	RA3LCI	-4 / -12	5	✓ Full exchange observed
08-20 16:54	40m	+2 / -	SQ8DIO	-8 / -14	4	✓ Closing observed
08-20 16:40	20m	- / -18	RN3RC	-8 / -	2	✓ Closing fragment
08-20 05:07	20m	-4 / -	OH5CX	- / -16	2	✓ Closing fragment
08-20 05:04	20m	0 / -	KZ2N	- / -11	3	✓ Closing fragment
08-20 05:00	20m	-13 / -	KN4UDS	- / -13	5	✓ Closing fragment
08-20 04:58	20m	-14 / +1	DL3FH	0 / -17	5	✓ Full exchange observed
08-19 13:38	10m	- / -	OE7CMT	-15 / -	4	Partial capture
08-19 13:32	10m	- / -21	DF3SP	-19 / -	7	✓ Closing fragment
08-19 06:03	10m	-14 / -11	RC6OD	-13 / -8	4	✓ Full exchange observed
08-18 14:29	20m	-13 / -	OH5C/P	- / -14	2	Partial capture
08-16 18:52	60m	-12 / -6	LY8O	-3 / -7	5	✓ Full exchange observed
08-16 18:52	60m	-12 / -10	SP8AWL	+8 / -5	7	✓ Full exchange observed
08-16 18:51	60m	-11 / -22	DG4BZ	-5 / -16	8	✓ Full exchange observed
08-16 18:51	60m	-10 / -5	SP7ROM	+10 / -12	5	✓ Full exchange observed
08-16 16:17	10m	- / -9	GJ0KYZ	+2 / -	2	Partial capture
08-16 08:27	20m	- / -8	RA3P	0 / -	2	Partial capture
08-16 04:05	40m	-3 / -	RT6DU	- / -16	2	✓ Closing fragment
08-12 18:55	80m	- / -	YU1FW	+7 / -	9	Partial capture
08-12 18:51	80m	- / -25	JA7GLO	-15 / -	2	Partial capture
08-12 18:49	80m	-8 / -	R4FDD	-18 / -14	3	✓ Closing observed
08-12 18:49	80m	- / -20	JA2VQF	-13 / -	6	Partial capture
08-12 18:49	80m	- / -7	UA1AEL	-10 / -	2	Partial capture
08-12 18:48	80m	- / -	SP6SOW	-5 / -	3	Partial capture
08-12 18:47	80m	-11 / -13	JA0LFV	-9 / -15	10	✓ Full exchange observed
08-12 18:45	80m	-16 / -1	R6BH	-14 / -10	5	✓ Full exchange observed
08-12 18:44	80m	-4 / -	JA0GCI	- / -17	2	✓ Closing fragment
08-12 18:42	80m	-6 / -	RA6YDX	- / -4	2	✓ Closing fragment
08-12 18:40	80m	-4 / -	R4ABW	- / -16	2	✓ Closing fragment
08-12 18:38	80m	0 / +5	SP9FZH	+7 / -21	10	✓ Full exchange observed
08-12 18:29	80m	- / +1	OK2AT	+6 / -	6	✓ Closing fragment
08-12 18:27	80m	- / -10	SP6SOW	+7 / -	8	✓ Closing fragment
08-12 18:24	80m	- / -2	UA3UBV	-12 / -	4	✓ Closing fragment
08-12 18:22	80m	- / -	SP6SOW	0 / -	2	Partial capture
08-12 18:20	80m	- / -18	R2DVU	-10 / -	2	✓ Closing fragment
08-12 18:18	80m	+7 / -11	RA4ABH	0 / -13	5	✓ Full exchange observed
08-12 08:06	10m	-20 / -	JA9CCG	- / -12	2	✓ Closing fragment
08-12 07:06	20m	-24 / -13	ON3BEN	-19 / -10	4	Partial capture
08-11 18:51	20m	- / -	G8OO	-16 / -	4	Partial capture
08-11 18:42	20m	-12 / -1	EA1FJD	-13 / -	7	✓ Closing observed
08-11 16:41	20m	-11 / -	UT4QM	- / -2	2	✓ Closing fragment
08-11 16:39	20m	-12 / -	PD1GOL	- / -14	2	Partial capture
08-11 16:18	20m	-13 / -10	CR5VP	-23 / -22	5	✓ Full exchange observed

Recent FT8 messages decoded at SO8OO

Frequency values are decoder audio offsets in hertz, not RF frequencies.

20m

UTC    dB Audio  Message
050700  +0 3057  OH5CX 4X5MZ R-16 (x2)
155600 -10 2862  4X5MZ R3DFE/M -11
160245 -14 2943  R9FDE/P 4X5MZ R-05
164000  -6 2177  4X5MZ RN3RC -18 (x2)
063000 -16 1078  4X5MZ OE5HTL +00
063145  -6 2559  II7MGXX 4X5MZ KM71
063230  -4 2558  4X5MZ II7MGXX -03
063230  +1 1494  4X5MZ IS0AWZ -11
063300  -2 2559  4X5MZ II7MGXX -03
063300  -4 2863  IU7VOL 4X5MZ KM71 (x2)
063345  +2 2864  4X5MZ IU7VOL RR73
063400  -6 2863  IU7VOL 4X5MZ 73

40m

UTC    dB Audio  Message
165845  +1  885  4X5MZ DL0FTT JO53
165900  +0 1198  RA0WBI 4X5MZ KM71
165915  +0 1951  4X5MZ DB3MAX JO64
165930  +0 1198  RA0WBI 4X5MZ KM71
165945  -2  885  4X5MZ DL0FTT JO53
165945  -4 1951  4X5MZ DB3MAX JO64
170000  +4  883  DL0FTT 4X5MZ -19
170015  +0  885  4X5MZ DL0FTT R-11
170030  +2  884  DL0FTT 4X5MZ RR73
170045  +0  885  4X5MZ DL0FTT 73
170100  -4 1950  DB3MAX 4X5MZ -17
170200  +0 1098  RK3AW 4X5MZ R-15 (x2)
044530  -5 2065  4X5MZ II7MGBT +06
044830  +2 1088  4X5MZ HB10GBT -09

10m

UTC    dB Audio  Message
060345 -12  858  4X5MZ RC6OD RR73
060400 -16  859  RC6OD 4X5MZ 73
061030 -22 1709  R6JC 4X5MZ 73
061745 -23 1676  G6LUE 4X5MZ KM71
133230 -23 1768  4X5MZ DF3SP JN48 (x7)
133800 -15  824  4X5MZ OE7CMT JN67 (x4)

60m

UTC    dB Audio  Message
185245  -4 1832  4X5MZ LY8O R-06
185245  +9 2251  4X5MZ SP8AWL KO11
185300 -11 1031  LY8O 4X5MZ RR73
185315  -3 1833  4X5MZ LY8O 73
185315 +10 2251  4X5MZ SP8AWL KO11
185330 -12 1031  SP8AWL 4X5MZ -05
185345  -2  540  4X5MZ DG4BZ JO42
185345  +6 2251  4X5MZ SP8AWL R-10
185400 -11 1031  SP8AWL 4X5MZ RR73
185415 +11 2251  4X5MZ SP8AWL 73
185415  -1  540  4X5MZ DG4BZ JO42
185430 -10 1032  DG4BZ 4X5MZ -16
185445  -4  540  4X5MZ DG4BZ R-22
185500 -12 1031  DG4BZ 4X5MZ RR73
185530 -12 1032  CQ 4X5MZ KM71                         a1

80m

UTC    dB Audio  Message
185245 -15 1109  4X5MZ JA7GLO -26
185300 -20 1050  R4NBV 4X5MZ -16
185330  -7 1050  CQ 4X5MZ KM71 (x3)
185515  +5 1731  4X5MZ YU1FW KN04
185515  -6 1049  4X5MZ IV3DSG R-01
185545 +10 1730  4X5MZ YU1FW KN04 (x8)

Decoder S/N history by band

Daily averages across messages associated with this profile as decoded at SO8OO.